SYNTHESIS OF ULTRAMARINE FROM SYNTHETIC MOLECULAR-SIEVES

Citation
S. Kowalak et al., SYNTHESIS OF ULTRAMARINE FROM SYNTHETIC MOLECULAR-SIEVES, Colloids and surfaces. A, Physicochemical and engineering aspects, 101(2-3), 1995, pp. 179-185
Citations number
11
Categorie Soggetti
Chemistry Physical
ISSN journal
09277757
Volume
101
Issue
2-3
Year of publication
1995
Pages
179 - 185
Database
ISI
SICI code
0927-7757(1995)101:2-3<179:SOUFSM>2.0.ZU;2-D
Abstract
Methods of ultramarine production using synthetic zeolites as substrat es have been developed. In contrast to the conventional method the emi ssion of sulfur oxides is almost negligible. Intense blue products hav ing the sodalite (SOD) structure have been obtained by the calcination of zeolites A, X, Y and hydroxysodalite impregnated with sulfur compo unds (mainly sodium polysulfides). An attempt has been made to introdu ce into zeolites the S-3(-) radicals generated in DMSO solutions of po lysulfides.